Self-lubricating car-wheel



(No Model.)

, y W. JENKINS, J1.

SELF LUBRIGATING GAR WHEEL.

BIO/307,307. Patented 0015. 28, 1884.

FIEIZ \A/I NEEEEE: V I Pk/ENTER \VILLIAM R. JENKINS, JR, OF BELLEFONTE,PENNSYLVANIA.

SELFF-LUBRICATING CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 307,307, dated October28, 1884.

Application filed August 30, 1584.

To aZZ whom it may cancer/L.-

Be it known that I, WILLIAM R. J .ENKINS, J r., of Bellefonte, in thecounty of Centre and State of Pennsylvania, have invented a new anduseful Improvement in Self-Lubricating Oar-\Vheels; and I dohereby'declare that the following is a full and exact description of thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon.

My improvements relate particularly to earwheels, pulleys, and otherwheels which revolve upon fixed axles or shafts, and more especiallysuch as have an annular oilreservoir surrounding the inner hub of thewheel or pulley. The object of the improvements is, principally andessentially, to effect a regular uninterrupted flow of oil from thereservoir to the axle or shaft bearings; and to this end the inventionconsists in the construct-ion and arrangement of parts, an as more fullyhere inafter described and claimed.

For the better understanding of my improvements, together with thedetails of con strnction and arrangement, attention is invited to theaccompanying drawings, in which- Figure 1 is a vertical central sectionlengthwise of the hub of a car-wheel with my iinproved device attached,and Fig. 2 an end 'ing. 1), having an interior flange or shoulder,

I), located a short distance back from its front end. Between thisflange or shoulder I) and the front end of the opening Z) thewalls ofthe latter are dovetailed or made flaring, as shown in Fig. 1. Throughthis opening I) into the reservoir is inserted a bent tube, 0, madepreferably of lead or some other ductile metal, and provided on itsouter end with an (No model.)

exterior flange, c, which, when the tube is properly inserted, abutsagainst the flange or shoulder b on the inside of the reservoir B. Afterthis tube 0 is inserted the flange a is swaged out until it fits tightlywithin the fiaring end of the opening I), thus making the joint secureagainst leakage. The tube 0 has an unobstructed )assage from its innerto its outer end, and said tube should be of such a curvature and lengththat when inserted into the reservoir its inner end will terminate inthe space a between the two parts of the hub, and not quite touch theaxle upon which the whole is mounted. Oil being poured in at the outeropening of the tube, it flows through the same tothe space a between thetwo parts of the hub, and thence around the axle into the reservoir B,filling the same up to about the level of the line a: a, Fig. 2. i

It will be noticed that the tube requires no stopper or cover to preventthe oil from escaping, for when the wheel is turned so that the openingof the tube is down the inner end will be above the level or surface ofthe oil in the reservoir; nor can the oil escape when the wheel is inmotion, for then the centrifugal force throws the oil around against theinner wall of the exterior easing of the reservoir; and then, again, theinner end of the tube being above the level or surface of the oil, itcannot enter at this point, and all that is taken up by the outer sidesof the tube will readily drip off on the axle.

Among the advantages asserted for my improved lubrieator areitssimplicity and consequent cheapness of construction and thefa cilitiesit affords for supplying the lubricant.

\Vhat I claim as new, and desire to secure by Letters Patent, is

1. Ina self-lubricating car-wheel, the coin bination of an exterioroil-reservoir, an interior hub having an opening through "to the axle,and a bent tube having an unobstructed passage from end to end andcommunicating with the opening in said hub, substantially as and for thepurpose set forth.

2. In a self-lubricating car-wheel, the combination of an exterioroil-reservoir, an inte rior hub, made in two parts, and a bent tubehaving an unobstructed passage from end to cnd,and terminating at itsinner end between the two parts of said hub, substantially as I providedwith opening '0 and flange b, of the and for the purpose set forth. benttube 0, provided on its outer end with 3. In a self-lubricatingoar-wheel, the @0111- i the flange c and secured in said opening I),bination of the hub A, made in two parts, substantially as described andshown. 5 and reservoir B, cast with the same, and pro- I In testimonywhereof I afiix my signature '15 Vided with opening I) and flange b, andthe in presence of two witnesses. bent tube 0, inserted and secured insaid open- I \VILLIAM R. JENKINS, JR. ing, substantially as described.Vitnesses:

4. In a self-lubricating car-wheel, the conr' I CHARLES SMrm-I, 1obination, with the hub A and reservoir B, J. L. MONTGOMERY.

